Oil Temp Bung
 

If I were to install an oil temp bung in the oil pan, could I epoxy the bung in rather than weld it. The motor is already installed in the chassis.

Difficult; but possible.
 

There are risks involved, and you might find this less than satisfactory, but it's possible.

The procedure used to put a pipe fitting in the oil pan for the oil drainback on a typical supercharger installation goes something like this.

1. Punch a hole in the pan with a sharp awl
2. Enlarge the hole with successively larger sharp awls until the ID is exactly the proper minor thread diameter for the tapping process.
3. Put grease on a tap to catch the filings, and tap the hole.
4. Screw in the fitting using liberal sealant.

...as you can imagine, this is not only nerve wracking, but results in what I feel is a less than satisfactory sealing surface.

Does it work? Yes, it's been done thousands of times.

Would I do it? Probably not, I'd pull the pan or take the oil temperature from somewhere else; like from an oil line. This might be a good excuse to install a remote filter assembly; you can take the oil temp from somewhere in that assembly instead of messing with the pan. Or, another option...you might be able to machine the oil dran plug to adapt to your oil temp sender.

Epoxy doesn't like to bond to oil impregnated steel. If you got the surface very clean and used the right metal epoxy, it would work well, but getting the oil out of the metal is rough.


Byron Reynolds
RACE Systems
San Jose, CA

Haz

This is not .....I repeat not a acceptable soloution......

Infact ..... I would not think of reccommending this idea to anyone......

Morris

Agreed.
 

Yeah, I don't like it either. That's why I said in my post that I probably wouldn't do it.

But, IT CAN be done; this procedure is part of the instructions for most Vortech, ATI, and Paxton supercharger installations on Fords.

Sounds like a prescription for disaster to me too, Morris. You'd be better off not even knowing your oil temp.

My oil temp and pressure are taken at the remote filter adapter on the block.I did have an alluminum bung welded in the cast alluminum pan pan . I then it all ceramic coated.My bung was to install an electric oil heater for winter start-ups.

Byron's solution is common place in installing intercooler oil return lines and is how it is done in the aftermarket world. I'm saying it's the best way, just really common.

Take the pan off and have a bung welded in... You'll be happy you did.